openwrt/package/base-files/files/lib/functions/migrations.sh

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. /lib/functions.sh
migrate_led_sysfs() {
local cfg="$1"; shift
local tuples="$@"
local sysfs
local name
config_get sysfs ${cfg} sysfs
config_get name ${cfg} name
[ -z "${sysfs}" ] && return
for tuple in ${tuples}; do
local old=${tuple%=*}
local new=${tuple#*=}
local new_sysfs
new_sysfs=$(echo ${sysfs} | sed "s/${old}/${new}/")
[ "${new_sysfs}" = "${sysfs}" ] && continue
uci set system.${cfg}.sysfs="${new_sysfs}"
logger -t led-migration "sysfs option of LED \"${name}\" updated to ${new_sysfs}"
done;
}
remove_devicename_led_sysfs() {
local cfg="$1"; shift
local exceptions="$@"
local sysfs
local name
local new_sysfs
config_get sysfs ${cfg} sysfs
config_get name ${cfg} name
# only continue if two or more colons are present
echo "${sysfs}" | grep -q ":.*:" || return
for exception in ${exceptions}; do
# no change if exceptions provided as argument are found for devicename
echo "${sysfs}" | grep -q "^${exception}:" && return
done
new_sysfs=$(echo ${sysfs} | sed "s/^[^:]*://")
uci set system.${cfg}.sysfs="${new_sysfs}"
logger -t led-migration "sysfs option of LED \"${name}\" updated to ${new_sysfs}"
}
migrate_leds() {
config_load system
config_foreach migrate_led_sysfs led "$@"
}
remove_devicename_leds() {
config_load system
config_foreach remove_devicename_led_sysfs led "$@"
}
migrations_apply() {
local realm="$1"
[ -n "$(uci changes ${realm})" ] && uci -q commit ${realm}
}